The Caliburn G Coils with a resistance of 1.0 ohms are designed for mouth-to-lung (MTL) vaping, providing a satisfying balance of flavor and vapor production. Compatible with the Uwell Caliburn G Pod System, these coils offer a versatile vaping experience suitable for users who prefer a tighter draw and a smoother throat hit. The “x4” designation likely indicates that these coils are sold in a pack of four, offering convenience and value for vapers.